A sebaceous cyst is a yellow or white lump that sits just under the skin and occurs when the small sebaceous glands that produce oil become blocked. Keratin collects around the affected gland and forms the cyst. A sebaceous cyst can form anywhere on your body, but they are most commonly found on the back, neck and scalp. These cysts are harmless, but they can grow and, if they are scratched or bumped, they can become infected. If you develop a cyst that fits the description of a sebaceous cyst, don't be tempted to self-diagnose. Have the cyst checked over by your GP and discuss whether you will treat it or take a watch and wait approach. Read on to learn about how your GP can treat a sebaceous cyst.
Treating An Infected Cyst
An infected cyst will be inflamed and red and may even have a thick white discharge oozing from it. If you have an infected cyst, your GP will prescribe a course of antibiotics to eradicate the bacteria causing the infection. Once the infection has cleared up, you can decide whether you want to leave the cyst as it is or have it treated.
Having A Sebaceous Cyst Aspirated
Your GP can aspirate the cyst to remove the thick keratin-based substance inside it. This approach will smooth out your skin at the site of the cyst, but it can leave a small scar. Your GP will inject a local anaesthetic into the area that's being treated and will use a scalpel to make an incision before gently squeezing out the contents of the cyst. The incision will then be covered with a sterile dressing to allow it to heal. Aspirated cysts can grow back, but they don't always, and this treatment approach is less invasive than removing the cyst completely.
Sebaceous Cyst Removal
Your doctor can also completely remove a sebaceous cyst by performing surgery to cut out the blocked gland. This treatment approach involves aspirating the cyst first and then cutting deeper into the tissue below your skin to remove the affected gland. Cyst removal prevents any type of regrowth, but it does leave a significant scar that's more noticeable than the scar left by the small incision required for aspiration. Complete cyst removal is often carried out when an aspirated cyst has grown back.
If you'd like more information about sebaceous cysts, or if you have a cyst that's not been checked by your doctor, schedule an appointment with your GP.